Embossing machine for milk cans



[ Aug. 3 1926.

J. NAGY auaossms momma: FOR MILK ems 2 Sheets-Sheet 1 Original Filed March 16, 1923 P ll J "L i Op. 0

4 J. NAGY] nusossme mourns FOR IHLK clms Original Fil ed March, 15, 1923 2 sheets sha.t 2

Patented Aug. 3, 1926.

nsirsn stares PATENT sms-n JOHN NAG-Y, OF WEST VIEW, PENNSYLVANIA, ASSIGNOR TO PITTSBURGII STAMP COMPANY, EIETSBURG-H,:PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA.

EMBOSSING MACHINE FOR MILK CANS.

Original application filed March 16, 1923, Serial No. 625,627. Divided and this application filed November 21, 1923. Serial No. 676,071.

My invention consists of an improvement in stamping or embossing machines for milk cans or similar cylindrical sheet metal articles. I The objects in view are to provide for placement and removal of the can with relation to the embossing elements, providing for synchronized driving of the wheels and 111211111381131108 of the power connection, when in either closed or open position.

The present application, which is a division of prior application patented March 18, 192%, No. 1, 57,591, refers particularly to the means for driving the lower adjustable embossing roller.

Referring to the drawings, showing one preferred embodiment of the invention I Fig. 1 is a view of the machine in side elevation, showing the embossing wheels closed together for operation;

Fig.2 is an end view;

Fig. 3 is a partial view similar to Fig. l, showing the embossing wheels separated;

Fig. l is a sectional detail view through the driving support for the adjustable embossing wheel;

Fig. 5 is a cross section on the line V-V of Fig. 4; and

F 6 is a horizontal section on the line Vl-VI of 1.

In the drawings, 2 is the base of the machine in the form of a hollow casting mounted by abroad pedestal 3 on the floor or other suitable foundation. At the upper portion of the machine is a forwardly projecting arm 4 extending beyond the front of the main machine and providing an outer bearing 5 for the front end of main shaft 6. Said shaft is .journalled in front bearing 5 and rear bearing 7, and is provided with a front terminal stem 8 for the upper die or embossing wheel 9, of well known construction, keyed on the stud and retained by the terminal nut, as shown.

Shaft 6 is geared by wheel 10 with pinion 11 of shaft 12 carried in suitable bearings 011 brackets 13 of the main frame and having the pulley ll for driving connection with any source of power.

The companion or co-acting embossing wheel 15 is secured upon a rotatable sleeve or bushing 16 carried by stud 17 of a horn 18, extending outwardly from the upper portion of a vertically adjustable slide plate or cross-head 19. The horn 18 is so shaped, as by deflecting its intervening body portion, to admit of its occupying-the space within the contracted neck of the can a to be embossed, and to locate the lower enibossing wheel 15 in operative position with relation to the upper wheel 9 and the intervening wall of the can a.

The deflected shape of the horn 18 is also of advantage in providing for the location of drive shaft 20 journalled in the lower portion of the horn, preferably within an inserted sleeve 21 therein. At the inner end of bushing 16 is an enlarged ring 22 having an internal or shrouded gear 23 engaged by a pinion2t secured tothe outer end of shaft 20, by which wheel 15 is rotated in a direction oppositeto that of wheel 9.

Shaft 20 is connected with a driving shaft or stud 25 at the rear end of the, machine by a series of universal joint couplings 26, so that, as the horn 18 is lowered or raised, the wheel 15 will always be in driving connection with said shaft 25 at any position. Shaft 25 is geared with main shaft 6 by gears 27-28 of the same relative pro-portions as to diameter and number of teeth as gears 2l23 so as to ensure synchronous revolutions of embossing wheels 9 and 15,

as will be readily understood.

For the purpose of vertically adjusting the horn 18 for insertion or removal of the can a, its supporting slide plate 19 is connected by toggle link 29 with centrally arranged connecting rod 30 of a rear actuating lever 31 secured to rock shaft 32. Said rock shaft is actuated by a manually operated lever 33 pivoted at 34 to the pedestal 3 and connected by rod 35 to lever 36 of rock shaft 32, at one side of'the machine. The front end of rod 30 is pivoted at 37 to the lower end of toggle link 29 and the upper end of a coacting toggle link 38, pivoted at 39 to the pedestal 3, as shown.

Toggle link 38 is preferably made adjustable as to length by means of an adjusting screw 40 acting in the manner of a turnbuckle, whereby to accurately locate the slide 19 and its supported horn and wheel in exact operative position, in using the machine. Lever 33 will be maintained in its erected position, as in Fig. 1, by the limiting set screw or bolt 41, and lever 36 will rest back against abutment 42 when the slide is lowered, as in Fig. 3.

Toggle link 29 is connect-ed to slide 19 by a bracket arm 43, which also serves as a support, by extension 44:, for the roller l5 upon which the can a is rotatably supported in action. Said roller is journalled at each end in the bracket 46 mounted for vertical adjustment by stud L7 secured by .setscrew 48 in the socket of extension a4.

A plate 49 is mounted by supporting rods 50 in supporting brackets 51 at each side of the main frame, having sockets for the rods and securing set screws 52. By this means, the plate 49 may be located outwardly or inwardly to the proper distance, and serves as an abutment for the inner end of the can neck, to locate the body portion in proper position for action of the embossing wheels.

Referring again to the vertically adjustable embossing wheel 15, it is mounted endwise on the bushing 16 and rotatably connected with the gear 22 by interfitting dowel pins 53. The bushing 16 is preferably of bronze or other non-frictional me and is secured to the gear by screws 5e, while the bushing and gear are retained against endwise movement by a shoulder at one end and a ring nut 56 secured on the end of the stud 17. An outer washer 57 and retaining nut 58, with sufficient clearance between the washer and the wheel, serve to maintain the wheel in freely rotatable condition, while the dowel pins are so located as to ensure proper positioning of the wheel with relation to its companion wheel 9.

An oil duct 59 provides for lubricant be tween the spindle 17 and the bushing.

The construction and operation of the machine will be readily understood from the foregoing description. The embossing wheels are removable from their spindles, of course, for the application of any desired arrangement or conformation of the stamping or embossing type, or for change of wheels, as will be readily understood. The operating gearing being continuously in mesh, whether the wheels are together or separated, ensures against any variation in registering co-operation of the wheels with each other, such continued intermeshing being due to the flexibility of the universal joint connection.

The manipulation of the actuating mechanism is simple and rapid, the machine is easily operated, and requires no special skill, and is adapted to a considerable range of sizes of cans, etc.

It may be changed in detail construction by the skilled mechanic to adapt it to various conditions of use, or otherwise, but all such changes are contemplate-d within the scope of the following claim.

What I claim is 1-- The combination with a vertically movable roller drive support having a laterally extending upwardly deflected horn provided with a stud projecting from its upper portion, of an embossing roller journalled on said stud provided with an internal gear, a driving pinion therefor having a shaft journalleo in said spindle a driving wheel for said shaft, and means flexibly connecting the driving wheel and the shaft of the driving pinion whereby to maintain driving connection with the embossing roller at varying positions of the vertically movable roller drive support.

In testimony whereof I hereunto afiiX my signature.

JOHN NAGY. 

